First of all, thank you for letting us play such a cute and funny game! Even if it's just a demo, I had a great time and will definitely play it again to see if there are multiple endings. If I dismiss the neighbour, instead of making friends with her, will I turn evil perhaps...?
The combination of a Where is Waldo type of shooter with the Houseflipper element is perfect for a casual game like me! The difficulty level and mechanics were perfect. I can't wait for the full game.
If I might offer any suggestion at all, it would be that the dialogue could be a little crazier. The neighbour character is definitely nice but somewhat mundane; perhaps it would be funny if she was a nosey meddler or even has her suspicions about you, but can't help herself from asking for free decorating favors. Or the main character could be complaining about his job as a hitman without any regard for his victims, because he is a complete giddy fool for his decorating. More of a - let's just shoot this lad so I can make my house look rad - kinda vibe. Perhaps this dialogue could even be in chatform, though imo the voiceacting is a nice touch.
I think such a bit more over-the-top dialogue would match well with the characters/bystanders in the shooting part. For example, I loved the fact that some people had silly outfits, like the astronaut suit or the Robin costume.
The fact that there are no walls in the house is also a keeper: I know some people might like to decorate walls, but I would refer them to Houseflipper if they want more of that stuff. The same goes for the amount of furniture you can buy. Perhaps some rugs or floors would be nice, but no need to create a Sims level simulator. The way the game is now is complete and charming, it works well, short enough decorating 'assignments' to keep a 50/50 with the shooter scenes, plus it just provides a really nice overview of the entire house.
And the bonus of getting to keep decorating with unlimited budget was a fantastic addition! Plus I added a little message for the creators of the game in the screenshot. Sorry for the length of my message, but I hope it may be of some use to you. Wishing you all the best with your work!